Chapter 20. Querying Documents Using XQuery
by Andrew Watt
In this chapter
Introducing XQuery
How XQuery Relates to XPath
The XQuery Data Model
The XQuery Query Languages
Some Illustrative XQuery Use Cases
Additional Resources
Roadmap
Increasing quantities of data are stored in XML or in situations where XML can be used as an intermediate format. Thus, a query language to efficiently and declaratively access such data forms is an important part of the XML technologies jigsaw. There is no point in having a lot of data if you can't effectively query it!
XQuery, the XML Query Language, is an important, large, and potentially complex specification currently under development at the W3C. It is intended to allow the querying of “real and virtual” XML documents. ...
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